Champion 828 QL77JC4 Spark Plug

The Champion 828 QL77JC4 Spark Plug is designed for marine applications. With reduced ignition RFI, it maintains accurate heat range control. Its copper core optimizes performance and extends plug life while ensuring maximum heat dissipation and conductivity. This spark plug can maintain stable operating temperatures under varying loads. It interchanges to NGK: BR9HS / BR9HS-10 and fits popular applications of brands like Evinrude, Johnson, MerCruiser, Mercury, OMC, and Yamaha. Each package includes one spark plug. Please reference your Owner's Manual for correct spark plug fitment, threading, sizing, and more.